Vacuum cleaner



FIG. 1 is a front elevationl view of a vacuum cleaner showing our newdesign;

FIG. 2 is a left side elevation view thereof;

FIG. 3 is a right side elevation view thereof;

FIG. 4 is a rear elevation view thereof; and,

FIG. 5 is a top plan view thereof.

The ornamental design for a vacuum cleaner, as shown and described.